Place chicken breasts between 2 sheets of waxed paper and pound out.,Blend cheese, crumbs, parsley, onions and 1/4 cup butter. Shape into 6 balls.,Season inside of each chicken breast with salt and pepper.,Place stuffing ball at one end of each breast.,______,Secure ends with skewers or toothpicks.,Brush rolls with oil and butter and sprinkle with paprika.,Arrange on medium-hot grill.,Cover and cook 15 minutes. Brush with oil and butter; turn and brush again.,Cover and continue cooking about 10 minutes more or until done.,Brush with oil and butter again just before serving.,Top with packaged mushroom sauce, if desired.